AKM41E-ACMNEH-00
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The AKM41E-ACMNEH-00 servo motor delivers a continuous stall torque of 2.02 Nm, a peak stall torque of 6.28 Nm, and operates efficiently with a rotor inertia of 0.000081 kg-m². As part of the AKM Synchronous Servo Motors series by Kollmorgen, it achieves maximum speeds of up to 6000 rpm and supports ambient temperatures up to 40°C.
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Product Description:
Kollmorgen manufactures the AKM41E-ACMNEH-00. The AKM41E-ACMNEH-00 synchronous servo motor has a highly optimized thermal and electromagnetic design that provides 2.02 Nm of continuous stall torque. The torque output is the motor’s ability to hold rotational force under full load conditions forever without exceeding its thermal limits. The continuous stall current of 2.85 A is the RMS value required to produce this torque. These numbers are related to the motor’s thermal capacity since heat dissipation is key to long-term operation. The Lorentz force on conductors in a magnetic field controls the torque production mechanism, which converts electrical input to mechanical output by controlling current flow and aligning magnetic flux.
The motor is designed to draw 11.4 Arms maximum current and 6.28 Nm maximum stall torque in transient conditions. The core material’s magnetic saturation limit and the allowed heat rise for short periods of time determine this peak capacity. When there are mechanical obstacles, sudden accelerations, or large start-up loads, the short but powerful torque burst is essential. It shows the motor’s ability to momentarily exceed its steady state performance by using insulation, thermal time constants and material properties that prevent demagnetization or structural failure during short overloads. The motor can react quickly to control commands in dynamic applications because it can withstand high electromagnetic stress while preserving mechanical and thermal integrity.
The rotor’s low inertia of 0.000081 kg-m2 is a big contributor to its responsiveness. Because of its low angular acceleration resistance, the motor can change velocity quickly, which is very useful in precision automation systems where repeatability and timeliness are critical. In feedback control loops, the low moment of inertia minimizes latency by ensuring a good torque-to-speed conversion. Additionally, the motor’s voltage-dependent speed characteristic, which is controlled by the increase in back electromotive force as speed increases, allows it to reach up to 6000 rpm at 400 to 480 VAC. At lower voltages, the motor speed will decrease. The induced voltage opposing input current is shown by a back EMF constant of 45.6 Vrms/krpm, which quantifies this voltage-speed relationship. Furthermore, the motor has an ambient operating limit of 40°C and a thermal resistance of 0.97 °C/W, so the heat dissipation profile is precisely calibrated to avoid thermal overload and ensure continuous operation in harsh industrial environments.
Frequently Asked Questions about AKM41E-ACMNEH-00:
Q: What is the continuous stall torque of the AKM41E-ACMNEH-00 servo motor?
A: The AKM41E-ACMNEH-00 provides a continuous stall torque of 2.02 Nm, which allows the motor to maintain steady-state torque under constant load conditions without overheating. This value is crucial in applications that require sustained force, ensuring the motor doesn't trip or degrade over time when running continuously.
Q: What makes the AKM41E-ACMNEH-00 suitable for high-speed applications?
A: It supports a maximum speed of up to 6000 rpm, which makes it ideal for high-throughput and fast-cycle applications. The high rotational velocity, combined with low rotor inertia, enables the motor to accelerate and decelerate rapidly, improving overall system responsiveness and reducing cycle times.
Q: How does the rotor inertia of 0.000081 kg-m² benefit the system?
A: Low rotor inertia allows for quicker changes in motion, contributing to better dynamic performance. With 0.000081 kg-m², the AKM41E-ACMNEH-00 can swiftly react to control inputs, making it ideal for applications requiring rapid start-stop movements or precise positioning.
Q: What is the peak stall torque, and when is it important?
A: The peak stall torque of 6.28 Nm reflects the maximum torque the motor can generate when stopped without rotation. This is essential during initial load engagement or in high-resistance startup conditions. It's also useful for temporary force spikes without damaging the motor.
Q: What kind of electrical input does this motor support?
A: It operates efficiently on various voltage levels: 2430 rpm at 120 VAC, 4850 rpm at 240 VAC, and 6000 rpm at both 400 VAC and 480 VAC. This flexibility allows the motor to integrate easily into different industrial systems depending on available power infrastructure.
